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Finding the Fourth Proportional to 65,009.07, 89,728.83 and 36,731.16

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Solution

The fourth proportional to 65,009.07, 89,728.83 and 36,731.16 is: 50,698.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,009.07 : 89,728.83 = 36,731.16 : x
  2. Step 2: Convert to fraction form
    65,009.07/89,728.83 = 36,731.16/x
  3. Step 3: Cross multiply
    65,009.07x = 89,728.83 × 36,731.16
  4. Step 4: Simplify right side
    65,009.07x = 3,295,844,011.34
  5. Step 5: Solve for x
    x = 3,295,844,011.34/65,009.07
  6. Step 6: Final answer
    x = 50,698.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.